You can access both guest chat as well as your channel(s) platform chat from the right panel by clicking on the corresponding icon. You can only chat with your audience when you’re live on your channel(s), but you can access guest chat at any time.
Chatting with your Audience
The Platform Chat area is where you’ll engage with viewers once you’re live on your channel. If you have multiple platforms linked you can filter out the chat you’d like to see at the top of the window. You can also toggle which platforms your messages will be sent to while chatting at the bottom of the window. Chatting to and from Custom RTMP Destinations is not currently supported.
Chatting with Guests
Once you have guests in your Green Room you’ll be able to communicate with one another via the Guest Chat window.